Gun sights



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United States Patent O 3,210,851 GUN SIGHTS Aloys P. Spack, Sr., Ladue, Mo., assignor to Benjamin Air Rifle Company, St. Louis, Mo., a corporation of Missouri Filed Nov. 20, 1959, Ser. No. 854,361 Claims. (Cl. 33-56) This invention relates to improvements in sights, and more particularly to adjustable gun sights having an improved windage adjustment and sight.

In prior gun sights it has been impractical to provide a simple and inexpensive sight which was both accurate and adjustable, and if adjustable which would satisfactorily maintain the adjusted position. To provide a satisfactory adjustable sight has required precision in design and manufacture, resulting in a sight which was too expensive and delicate for many sporting guns.

It is therefore an object of this invention to provide an improved sight which is adjustablerbothin,elevation and in windage,simple and inexpensive to manufacture, accurate in adjustment, and which when adjusted, adequately retains the adjuste'd position.

Other objects of this invention are to provide an irnproved gun sight which is easily assembled and disassembled, and which, when assembled, may be accurately adjusted, and thereafter maintains the desired adjustment.

Still another object of this invention is to provide a gun sight having improved optical characteristics.

Additional objects and advantages of this invention will be apparent from the following description and drawings in which:

FIGURE 1 is a side elevation View of an embodiment of the invention,

FIGURE 2 is a sectional view taken on the line 2 2, in FIGURE 1,

FIGURE 3 is an enlarged fragmentary sectional view of a portion of FIGURE 2,

FIGURE 4 is a sectional view taken on the line 4 4, in FIGURE 2,

FIGURE 5 is a rear elevation view of another embodiment of the invention, and

FIGURE 6 is a sectional View taken on the line 6 6, in FIGURE 5.

Referring to the drawings, FIGURES l and 2 illustrate a gun barrel 1 having mounted thereon a gun sight 2. The gun barrel 1 is provided with a rectangular notch 3 which receives a cl-osely fitting base in the form of an elevation member 4. The elevation member 4 is provided with an elongated slot 5 which receives a bolt or set screw 6, the bolt being threadably received in a threaded hole in the gun barrel 1. Thus the elevation member 4 may be adjusted vertically by loosening the bolt 6, and retained in the adjusted position by tightening the bolt 6. Any appreciable movement of the elevation member 4, other than vertically with respect to the gun barrel 1, is prevented by close engagement of the elevation member and the notch 3.

The upper end of the elevation member is provided with a threaded bore 8. A windage or sighting member 10 includes a cylindrical body and afiixed thereto a threaded shank 12 having coincident central longitudinal axes. The threads on the shank 12 are axially aligned with the longitudinal axis. The shank 12 has a cylindrical stud 13 received in a socket 11 in the sighting member 10, as by a tight sweat fit. The threaded shank 12 is threadably received in the threaded bore 8 of the elevation member 4. A nut 14 is threadably received on the threaded shank 12, and between the elevation member 4 and the nut 14 is a resilient member 16, as illustrated, a lock washer.

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The resilient member 16 is best shown in FIGURES 3 and 4. A disc 17 has a plurality of inwardly disposed resilient lingers 18, each twisted transversely to the body of the disc 17 and providing resilient tips 18a and 1811, as may be seen in FIGURE 3. With particular reference t0 FIGURE 3, the resilient member 16, between the elevation member 4 and the nut 14, forces the nut away from the elevation member 4, and forces the threads of the nut into engagement with the one face of the threads of the windage or sighting member shank 12, and the threads of the bore 8 of the elevation member 4 into engagement with the other face of the threads of shank 12. Thus the threaded shank 12 is held firmly in threaded engagement with the nut 14 and the elevation member 4 so that no play or back lash occurs. The edges of lingers 18, that is, tips 18a and 18b, are firmly pressed against the adjacent faces of the elevation member and the nut, and may cut into both to further prevent rotation of the nut with respect to the elevation member. It should further be noted that the resilient member is provided with a sufiicient number of evenly spaced resilient fingers 18, as illustrated six lingers, so that the nut 14 is forced into substantially constant threaded engagement with the threads of the shank 12, and the nut remains perpendicular to the longitudinal axis of the shank 12, to further retain the windage me-mber `in its adjusted position by preventing slippage between the threaded parts. Therefore, an effective close and tight tting screw adjustment, and an accurately adjustable windage member, are provided without necessitating unduly precise or costly manufacturing methods.

When the nut 14 is tightened down against the resilient member 16 the fingers 18 threadably engage the threads on the shank 12, and the windage member 10 may be adjusted by rotating it so that the threads on the threaded shank 12 cause it to move toward or away from the elevation member 4. The nut 14 may be tightened prior to windage adjustment, and therefore when the desired windage adjustment is obtained, such adjustment need not be disturbed, nor must allowance be made, as would occur if the nut 14 were tightened after adjustment of the windage member. The end of the cylindrical body member 11 of the windage member 10, opposite the threaded shank 12 is provided with a notch 20 for receiving a screw driver or other instrument with which to turn the windage member. Midway of the periphery of the body member 11 is a V-shaped groove of about sixty degrees included angle, extending circularly around the periphery of the body member and providing a sighting indicator for the eye. The circular arch, by eliminating edges or corners, aids the eye in more rapidly and accurately sighting on the target. Because of the V-shaped groove 21 extending throughout the periphery of the cylindrical body member of the windage member 10, infinite and precise adjustment of the windage member is obtained by turning the windage member any desired amount to move it transversely of the longitudinal axis of the gun barrel 1.

FIGURES 5 and 6 illustrate another embodiment of the invention wherein the cylindrical body -member of the windage member 10 is replaced by a peep sight 25 fixed to the threaded shank in the same manner as the member 10. The peep sight 25 has a sighting peep hole 26 with outwardly divergent bevels 27 of about sixty degrees included angle, on either side. The peep sight is adjusted in the same manner as the cylindrically grooved sight body 10, it being merely necessary to rotate the peep sight one-hundred-and-eighty degrees, as both sides of the sight are identical. The threaded shank is preferably provided with a fine thread, such as a thread having approximately forty-eight turns per inch, so that the movement of the peep sight for each half turn is very slight, about one-hundredth of an inch.

Although this invention has been described with particular refenrence to certain embodiments and structural details, various modifications and improvements will be apparent to one skilled in the art, and the invention is not to be limited to such embodiments or structural details, except as set forth in the appended claims.

I claim:

1. In a sight for a gun, the combination comprising, a base, a sighting member having a sighting axis, cooperating threaded means on said base and said sighting member for t/ransversmmgyement of 4said sighting`-` axis toward or away from said bas'pon rotation of said sighting member with respect to said base, and releasable means including a resilient washer in cooperative threaded engagement with said threaded means on said sighting member for elTectively retarding movement between said sighting axis and said base.

2. In a sight for a gun, the combination comprising, a base, a sighting member having a longitudinal axis and a circular peripheral sighting groove transverse to said longitudinal axis, cooperating threaded means on said base and said sighting member axially aligned with said longitudinal axis for movement of said sighting member toward 'or. away` Afronnsaid. ,ba s,e upon rotation Aottsaidsighting member with respect to said base, and

resilient means providing a snug t between said base and said sighting member during adjustment of said sighting member and effectively retarding movement between said base and said sighting member when said sighting member is adjusted.

3. In a sight for a gun, the combination comprising, a base, a sighting member having a sighting axis and normal thereto a longitudinal axis, cooperating threaded means on said base and said sighting member axially aligned with said longitudinal axis for movement of said sighting member toward or away from said base upon rotation of said sighting member, and clamping means engaging the threaded means on said sighting member for effectively retarding movement between said base and said sighting member, said clamping means including, a nut on said threaded means and resilient washer means clamped between said base and said nut and having fingers engaging said base and said nut for holding said nut perpendicular to said longitudinal axis to retain said sighting member in proper alignment during adjustment, thereby providing more accurate adjustment of said sighting member.

4. In a sight for a gun, the combination comprising, a base, a sighting member having a longitudinal axis and a circular peripheral sighting groove transverse to said longitudinal axis, cooperating threaded means on said base and said sighting member axially aligned with said longitudinal axis for movement of said sighting member toward or away from said base upon rotation of said sighting member with respect to said base, and releasable clamping means in cooperative engagement with said threaded means on said sighting member for providing a sung t between said base and said sighting member during adjustment of said sighting member and effectively retarding movement between said base and said sighting member when said sighting member is adjusted, said clamping means including a nut on the last said threaded means and resilient washer means clamped between said base and said nut and having lingers engaging said base and said nut for effectively retarding movement between said base and said sighting member when said sighting member is adjusted and holding said nut perpendicular t-o said longitudinal axis and operatively stationary with respect to said base during adjustment of said sighting member to retain said sighting member in proper alignment during adjustment, thereby providing more accurate adjustment of said sighting member.

5. In a sight for a gun, the combination comprising, a base, a sighting member having a longitudinal axis and a sighting peep hole with a longitudinal axis transverse to said longitudinal axis of said sighting member, cooperating threaded means on said base and said sighting member axially aligned with said longitudinal axis for movement of said sighting member toward or away from said base upon rotation of said sighting member with respect to said base, and releasable clamping means in cooperative engagement with said threaded means on said sighting member for providing a snug fit between said base and said sighting member during adjustment of said sighting member and effectively retarding movement between said base and said sighting member when said sighting member is adjusted, said clamping means including a nut on the last said threaded means and resilient washer means clamped between said base and said nut and having lingers engaging said base and said nut for effectively retarding movement between said base and said sighting member when said sighting member is adjusted and holding said nut perpendicular to said longitudinal axis and operatively stationary with respect to said base during adjustment of said sighting member to retain said sighting member in proper alignment during adjustment, thereby providing more accurate adjustment of said sighting member.

References Cited bythe Examiner UNITED STATES PATENTS 371,850 10/83 Maynard. 1,039,055 9/ 12 Helwig 33-163 1,397,108 11/21 Payne 33-56 1,652,980 12/27 Glass 33-112 1,834,248 12/31 Lorenzen 33-585 X 1,926,917 9/33 Rosenberg 151--35 1,963,800 6/34 Olson 151--35 2,005,952 6/35 Mossberg 33t-56,5 2,250,861 7/41 Ekdahl E53- 56.5 2,336,108 12/43 Lowe 33--56.5 2,454,397 11/48 Mossberg 33-56.5

FOREIGN PATENTS 20,187 11/00 Great Britain. 201 10/12 Great Britain.

ISAAC LISANN, Primary Examiner.

ROBERT L. EVANS, Examiner. 

1. IN A SIGHT FOR A GUN, THE COMBINATION COMPRISING, A BASE, A SIGHTING MEMBER HAVING A SIGHTING AXIS, COOPERATING THREADED MEANS ON SAID BASE AND SAID SIGHTING MEMBER FOR TRANSVERSE MOVEMENT OF SAID SIGHTING AXIS TOWARD OR AWAY FROM SAID BASE UPON ROTATION OF SAID SIGHTING MEMBER WITH RESPECT TO SAID BASE, AND RELEASABLE MEANS INCLUDING A RESILIENT WASHER IN COOPERATIVE 